The hydrogen then flows toward the white dwarf's magnetic poles.

然后氢气流向白矮星的磁极。

This magnetic concentration forms vortexes that radiate beams from the magnetic poles.

这种磁场会集中形成为来自磁极辐射光束的漩涡。

This phenomenon occurs above the magnetic poles in the Northern and Southern Hemispheres.

这种现象发在北半球和南半球的磁极之上。

I've gone to the magnetic North Pole on a dog sled.

我坐着雪橇犬拉的爬犁到过北磁极。

The last polarity reversal took place some 770,000 years ago.

最近一次地磁极性倒转发在大约77万年前。

This phenomenon occurs above the magnetic poles in the Northern and Southern hemisphere.

这种现象发在北半球和南半球的磁极上方。

A second, intensifying blob below Siberia is pulling the pole away.

西伯利亚地下另一个不断加强的液态水团正在将磁极拉远。

The magnetite likely plays a role in orienting sea turtles to Earth's magnetic poles, similar to a compass.

磁铁矿可能在将海龟定向到地球磁极方面起作用，类似于指南针。

You had a jet of plasma traveling very fast that impacted on the magnetopoles-that's the boundary of our magnetosphere.

移动速度极快的等离子体射流撞击磁极——也就是地球磁层的边界。

Since Earth rotates as a solid, our magnetic field is simple, we have two poles: North and South.

既然地球作为一个固体自转，我们的磁力就很简单，有两个磁极，北极和南极。

" There's clear evidence from the volcanic rocks of a major excursion happening at about 795,000 years ago."

“来自火山岩的明确证据表明，磁极在大约79。5万年前发过一次大偏移。”

A middle layer of nickel, which gives the bots magnetic polarity, so they can be pulled through wastewater with magnets.

中间的镍层提供磁极性，这样在磁力作用下机器人可以从废水中脱离。

Magnetic force causes similar poles to repel one another, and opposite poles to attract.

磁力使相似的磁极相互排斥，相反的磁极相互吸引。

They found that the reversal took about as long as many scientists previously believed it did-just a few thousand years.

他们发现，磁极倒转所需时间与许多家之前认为的一样长——只需要几千年。

When another Schwabe cycle occurs, the  poles swap back.

当另一个施瓦贝循环发时，磁极会交换回来。

But imagine if instead of two poles you had 1 to 10 million. This is what happens on the Sun.

但是想象一下如果你不是只有2极，而是有1百万或1千万个磁极的情景。而太阳上就是这样。

Once the magnetic pole has  completed one rotation, you have your day.

一旦磁极完成一圈旋转，您就迎来了美好的一天。

But that can't happen with magnets because you can't isolate one magnetic pole.

但这不会发在磁铁上，因为 你无法隔离一个磁极。

Permanent magnets also have fixed poles.

永磁体也有固定磁极。

This is because the magnetic poles of a neutron star are rarely ever aligned with its axis of rotation.

这是因为中子星的磁极很少与其旋转轴对齐。